2-Chlorotrityl chloride, polymer supported 200-400 mesh


Synonyms: 2-ClTrt resin2-CTC resin

4025425.0005 4025425.0025
D-1965.0005BAEA 187.04 USD
D-1965.0005BA D-1965.0025BA
2-Chlorotrityl chloride, polymer supported 200-400 mesh
2-Chlorotrityl chloride, polymer supported

A very acid sensitive resin suitable for the synthesis of protected peptide fragments by the Fmoc-strategy. ClTrt resin is in particular suitable for the preparation of C-terminal prolyl and cysteinyl peptides (please see 2-Chlorotrityl Chloride Resin-Linked Amino Acids). Release from this resin is achieved by using 1-50 % TFA in CH₂Cl₂ containing 8 % triisopropylsilane, AcOH/CF₃CH₂OH/CH₂Cl₂, 0.5 % TFA or hexafluoroisopropanol/CH₂Cl₂. ClTrt resin has been used in cyclization reactions under Heck reaction conditions, the solid phase synthesis of β-peptides via the Arndt-Eistert homologation of Fmoc-protected amino acid diazoketones and in Mannich reactions of alkynes, secondary amines and aldehydes in the presence of a copper (I) salt affording the corresponding aminomethylalkynyl adducts. 2-Chlorotrityl resin is highly suitable for the synthesis of peptide alcohols, e.g., peptaibols, and peptide ω-aminoalkylamides.

  • Substitution: 1.00-2.50 mmol/g

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